Affiliation: | UNIV OCCUPAT & ENVIRONM HLTH,DEPT SURG 2,KITAKYUSHU,FUKUOKA 807,JAPAN. UNIV OCCUPAT & ENVIRONM HLTH,DEPT ENVIRONM HLTH,KITAKYUSHU,FUKUOKA 807,JAPAN. UNIV OCCUPAT & ENVIRONM HLTH,DEPT CLIN EPIDEMIOL,KITAKYUSHU,FUKUOKA 807,JAPAN. KYUSHU UNIV,SCH MED,DEPT SURG 2,FUKUOKA 810,JAPAN. AICHI CANC CTR,DEPT THORAC SURG,NAGOYA,AICHI 464,JAPAN. |